Android “antivirus” scam – still on Yahoo ad-running sites #malware

This year-old scam has resurfaced very prominently, and I’ve run into it on various websites that show Yahoo ads, indicating pretty massive malicious advertisement volume. A browser pop-up says the following:

Virus Affecting your Android? Turn on Virus Scanner NOW!

If you click “OK”, you can be taken to a variety of destinations, including:

  • a spammy but legit-looking dating app on Google Play with 50mil(!) downloads – I’d imagine malicious ads are partly responsible for that number, maybe via an affiliate?
  • a selection of some shady dating/porn sites
  • and best of all, a step-by-step guide for you to enable app install from unknown sources on your phone, and download a modified version of “Android Armour” APK binary with God knows what added functionality:


Very impressive, considering these friendly folks are basically talking people into opening up their phones to every other kind of evil garbage that comes up next.

I ran into this a bunch of times over the last few weeks, as recently as this weekend on Tumblr. I know Yahoo is trying to squash these as fast as humanly possible, but until then, beware. And again, in US, it’s a good idea to never install anything on Android from anywhere other than Play.

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